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Finding the Fourth Proportional to 8,881.03, 13,318.80 and 2,956.65

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Solution

The fourth proportional to 8,881.03, 13,318.80 and 2,956.65 is: 4,434.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.03 : 13,318.80 = 2,956.65 : x
  2. Step 2: Convert to fraction form
    8,881.03/13,318.80 = 2,956.65/x
  3. Step 3: Cross multiply
    8,881.03x = 13,318.80 × 2,956.65
  4. Step 4: Simplify right side
    8,881.03x = 39,379,030.02
  5. Step 5: Solve for x
    x = 39,379,030.02/8,881.03
  6. Step 6: Final answer
    x = 4,434.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.